The SMHF4212S from Crane Aerospace & Electronics is a DC to DC Converter with Input Voltage 35 to 55 V, Output Voltage 1 11.76 to 12.24 V, Output Current 1 1.25 A, Output Power 0 to 15 W, Power Consumption 3.5 to 8 W (Dissipation). Tags: Surface Mount. More details for SMHF4212S can be seen below.